Folded Control Circuit Board Positioning Between Hinges

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Solution Overview

Problem

Notebook computers face an issue with increased width due to control boards extending rearward, which can be mitigated by folding them back, but this increases overall thickness.

Innovation Solution

An electronic device design featuring a first body, a second body, and two hinges, with an electronic assembly, including a control circuit board and flexible printed circuit, positioned between the hinges to rotate relative to the display panel, allowing the control circuit board to bend and be secured within existing internal space without increasing device size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the control board extends toward the rear end of the NB along a direction parallel to the display surface, then the control board can be easily connected to the display panel, but the width of the NB in this direction is increased

Engineering Contradiction:
Improveconnection easeVSAvoidwidth
Core Design Contradiction:
Ease of manufactureVSLength of stationary object

Solution Approach 1:

The control board is folded back along a direction substantially perpendicular to the display surface, changing its spatial arrangement from a planar extension to a three-dimensional configuration. This dimensional change allows the control board to be positioned in the thickness direction rather than extending the width, thereby reducing the NB's width while maintaining connection functionality through the flexible printed circuit.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Length of stationary object

If the control board is folded back to overlap the back of the display panel, then the width of the NB is reduced, but the overall thickness of the NB is increased

Engineering Contradiction:
ImprovewidthVSAvoidthickness
Core Design Contradiction:
Length of stationary objectVSLength of moving object

Solution Approach 1:

The control board is positioned within a receiving groove that is formed in the housing structure. This nesting arrangement allows the control board to be accommodated in an existing internal space rather than adding to the overall thickness. The receiving groove effectively 'hides' the control board within the device's internal architecture, maintaining a compact thickness profile.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Length of stationary object

If the electronic assembly is positioned between the two hinges, then the overall device size is reduced, but the electronic assembly must be accommodated within existing internal space

Engineering Contradiction:
Improveoverall sizeVSAvoidinternal space arrangement
Core Design Contradiction:
Length of stationary objectVSDevice complexity

Solution Approach 1:

The housing is divided into functional zones, including a receiving groove specifically designed to accommodate the electronic assembly. This segmentation of space allows the electronic assembly to be precisely positioned between the hinges without interfering with other components. The receiving groove creates a dedicated compartment that simplifies the arrangement of internal components while maintaining compact overall dimensions.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11360524B2Electronic device
Publication Date: 2022.06.14 COMPAL ELECTRONICS INC
  • US11360524B2 patent drawing
  • US11360524B2 patent drawing
  • US11360524B2 patent drawing

AI summary

An electronic device includes a first body, a second body, two hinges, and at least one electronic assembly. The two hinges are connected between the first body and the second body, and the first body and the second body are adapted to rotate relatively through the two hinges. The electronic assembly is connected to the second body and is located between the two hinges.